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Author Question: In the technique known as behavioral observation, the first step is A) choosing an observer who ... (Read 73 times) |
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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If you could remove all of your skin, it would weigh up to 5 pounds.